You can import a certificate or generate a Certificate Signing Request (CSR) and use that certificate on the web server or an IPsec tunnel.
To create a certificate:
- You must first create a CSR; and complete all the required information related to the certificate, including details such as Common Name, Organization, Organization Unit, and more. For more information, see the Create a CSR section. 
- After creating the CSR, you can either self-sign it or send it to a Certificate Authority (CA) for signature, and the CA will then generate the certificate. 
- Once you upload the certificate to the system, you can either use it as a web server certificate or use it while creating an IPsec tunnel. 

Create a CSR
You can either generate a CSR and get it signed by a Certificate Authority or self-sign it.
To create a CSR:
- Go to Security :: Certificates. 
- Click Create CSR. 
- To generate a CSR to be signed by a CA: - Enter the details. - DO NOT check the Self-signed field. 
- Click Generate CSR. Download the CSR and send it to a CA. 
- To download the CSR, go to the Certificate table, and click the CSR name link. 
- Click Download. 
 
- To generate a self-signed certificate for the webserver: - Select the Self-Sign Certificate field. 
- Specify the Certificate validity in days. 
- Select the Self-Sign Certificate field. 
- Click Generate CSR. A self-signed certificate is listed in the Certificate tab. 
 
- To generate a self-signed certificate for the IPsec tunnel: - Specify the Certificate validity in days. 
- Select the User SSL Certificate Trust Attribute field. - Trusted Peer (P): Select this field if the Nodegrid device can act as a trusted - peer and be used in the authentication phase in an IPsec network. 
- In the case of self-signed certificates, where there's no external CA involved, - these attributes are used to establish trust within the IPsec network. - Trusted CA to issue client certificates (T ): This attribute ensures - that the self-signed CA certificate is trusted to issue client certificates. - Select the field to allow the IPsec to be validated against this CA - certificate to prove their identity and securely gain access to the IPsec - network. 
- Trusted CA to issue server certificates (C): This attribute ensures - that the self-signed CA certificate is trusted to issue server certificates. - Select the field to allow the IPsec servers to validate against this CA - certificate to prove their identity and securely gain access to the IPsec. 
 
 
 
- Click Generate CSR. 
- A self-signed certificate is generated and listed under the Certificates tab.